Robert M. Leach
25Patents
7h-index
7Co-inventors
62Inventor score
Filing activity: Jul 31, 1974 → Jan 14, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4622248A | Preservative composition for wood | Performing Operations; Transporting | 53 | Expired |
| US4313976A | Composition and process for coloring and preserving wood | Performing Operations; Transporting | 35 | Expired |
| US6843837B2 | Polymeric wood preservative compositions | Chemistry; Metallurgy | 26 | Expired |
| US7674481B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 20 | Active |
| US8603576B2 | Compositions and methods for treating cellulose based materials with micronized additives | Emerging Cross-Sectional Technologies | 10 | Active |
| US4752297A | Process for coloring wood with iron salt in water | Performing Operations; Transporting | 9 | Expired |
| US3954953A | Energy conserving process for manufacturing ferric sulfate | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4065402A | Tall oil defoamer for high strength acid media | Performing Operations; Transporting | 6 | Expired |
| US5009964A | Composition and process for imparting fire retardant properties and improved thermal stability to cellulosic materials | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7001452B2 | Polymeric wood preservative compositions | Chemistry; Metallurgy | 5 | Expired |
| US8168304B2 | Micronized wood preservative formulations comprising boron compounds | Emerging Cross-Sectional Technologies | 5 | Active |
| US4065404A | Tall oil defoamer for high strength acid media | Performing Operations; Transporting | 5 | Expired |
| US8778407B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 5 | Active |
| US8747908B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 4 | Active |
| US4145310A | Defoamer for high strength acid media | Performing Operations; Transporting | 4 | Expired |
| US9775350B2 | Micronized wood preservative formulations in organic carriers | Performing Operations; Transporting | 3 | Active |
| US8460759B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 2 | Active |
| US8974854B2 | Compositions and methods for treating cellulose-based materials with micronized additives | Emerging Cross-Sectional Technologies | 2 | Active |
| US4065403A | Tall oil defoamer having a nonionic additive defoamer for high strength acid media | Performing Operations; Transporting | 2 | Expired |
| US8747909B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 1 | Active |
| US9266251B2 | Compositions and methods for treating cellulose-based materials with micronized additives | Emerging Cross-Sectional Technologies | 1 | Active |
| US8637089B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 1 | Active |
| US9937634B2 | Compositions and methods for treating cellulose-based materials with micronized additives | Emerging Cross-Sectional Technologies | 0 | Active |
| US4145309A | Defoamer for high strength acid media | Performing Operations; Transporting | 0 | Expired |
| US9079328B2 | Micronized wood preservative formulations | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.